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參數資料
| 型號： | MC34280FTB |
| 廠商： | ON SEMICONDUCTOR |
| 元件分類： | 電源管理 |
| 英文描述： | Power Supply & Management IC for Handheld Electronic Products |
| 中文描述： | 1-CHANNEL POWER SUPPLY SUPPORT CKT, PQFP32 |
| 封裝： | LQFP-32 |
| 文件頁數： | 3/20頁 |
| 文件大小： | 380K |
| 代理商： | MC34280FTB |
MC34280
http://onsemi.com
3
TIMING DIAGRAMS
LOWBATB
VBAT
VMAIN
ENABLE
PORB
LOWBAT Threshold
VMAINreg – 0.5 V
VAUXEN
PORB
VMAIN
ENABLE
VBAT
tPORC
VMAINreg – 0.15 V
VMAINreg
TPOR
1.22
0.5
Cpor
RIref
Figure 2. Startup Timing
Figure 3. Power Down Timing
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